Working load limit

Kinugawa Chain Mfg.Co.,Ltd.

TEL 81-792-34-1515 FAX 81-792-34-1519

We are often asked " I want to use for ○○ton. Which ring do I use?"
This is a list for quick responce about these questions.
This list shows available load of ring made of material SBC490 for chains.

Size Use Load
t

( d )
0.3

0.5

1

1.5

2

3

5

10

15

φmm
Inner Diameter ( D ) φmm

13

100

16

100

150

65

19

100

150

90

70

22

200

150

100

70

25

300

200

150

100

28

125

150

32

150

200

130

38

150

200

42

150

46

200

50

150

56

200

If greater strength one is requested, we should change material to SCM 435 and to give it a heat treatment. Then we can produce rings which have twice strength of one made of SBC490.
If you use ring made of stainless(SUS304) to prevent corrosion, you should make this Working Load Limit to hafe value, because stainless steel is deformable by load.

But Braking Load (BL) is very large.
For instance, 25-100 WLL = 3.2 t BL = 40 t

Working Load Limit ( WLL ) is decided as less than 1/2 of transformation load,
and less than 1/5 of Braking Load in this table.

Size			Use	Load			t
( d )	0.3	0.5	1	1.5	2	3	5	10	15
φmm				Inner	Diameter	( D )	φmm
13	100
16		100
		150	65
19			100
			150	90	70
22			200	150	100	70
25			300	200	150	100
28						125
						150
32						150
						200	130
38							150
							200
42								150
46								200
50									150
56									200